Not sure what should be happening here.
I was looking for an omni ion dril for mining in a recent Network game. They were pretty scarce. I God-searched for them and found that they were stocked in 7 of the 9 IMU local stations that I had found. But none appeared for sale in their Commodites dockscreens.
There were about 5 for sale in other stations, eg Thor's, Ringers.
No Corporate Ore Refinery had one in stock.

The IMU stations stock items with the +miningEquipment attribute but only offer equipment for sale which has the +essentialMiningEquipment attribute.

Should there also be a selection of equipment for sale which has the +miningEquipment attribute?
Or does the ion drill need the +esentialMiningEquipment atribute?
It seems odd that it cannot be bought in the IMU stations or found in an Ore Refinery.